Polymers with urea groups and silyl groups and production and use thereof
View Patent ↗A process for the production of compounds which contain at least one urea group and at least one silyl group. The process involves reacting a compound containing at least one amino group and a carbamate compound. The compounds produced by this process are useful as surface coating compositions, foams and adhesives.
1. A process for the production of compounds containing at least one isocyanurate group, at least one urea group and at least one silyl group comprising reacting a compound containing at least one amino group and a carbamate compound together as reactants, wherein at least one of the reactants carries a silyl group.
2. The process of claim 1 wherein the reaction is carried out in the presence of a catalyst.
3. The process of claim 1 wherein the reactants further comprise at least one of methyl carbamate or ethyl carbamate.
4. The process of claim 2 wherein the catalyst is selected from the group consisting of organic bases and organometallic compounds.
5. The process of claim 1 wherein at least one polymer is used as the at least one reactant.
6. The process of claim 5 wherein the polymer is selected from the group consisting of polyacrylates, polymethacrylates, polystyrenes, polyesters, polyethers, polyamides, polyurethanes, polycarbonates, polylactones, polyethylene imine, polyureas, polyolefins and polyoxazolidones.
7. The process of claim 1 wherein the at least one reactant contains at least two carbamate groups.
8. The process of claim 7 wherein the reactant containing at least two carbamate groups is a polymer.
9. The process of claim 7 wherein the reaction is carried out in the presence of a trimerization catalyst.
10. The process of claim 1 wherein not all of the carbamate groups are reacted.
11. The process of claim 1 wherein at least one compound containing a silyl group, a urea group and a carbamate group is present after the reaction.
12. A method for the production of surface coating compositions, sealants, adhesives or assembly or insulating foams comprising addition of a compound produced by the method of claim 1 to a surface coating composition, a sealant, and adhesive or assembly, or an insulating foam.